> For the complete documentation index, see [llms.txt](https://doc.sysdevmobile.com/syslog-extensibility/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://doc.sysdevmobile.com/syslog-extensibility/functions-syslog-kalipso-1/price-checking3/700-3.md).

# 700 - (Price Checking) Price Checking Module

700 - (Price Checking) Price Checking Module

| **Event** | **Extension action set** | **Description**                                                                                                                   |
| --------- | ------------------------ | --------------------------------------------------------------------------------------------------------------------------------- |
| Before    | EXT\_0700\_1\_Before     | Will be executed before Syslog APP open the price checking module;                                                                |
| Replace   | EXT\_0700\_2\_Replace    | Will replace Syslog APP price checking module (can be used to validate if normal Syslog APP module opens using outOpenAPPModule); |
| After     | EXT\_0700\_3\_After      | Will be executed after closing the price checking module;                                                                         |

*Output Parameters (event replace)*:

* outOpenAPPModule – Return code: 
  * 1 – Open Syslog APP module
  * 0 – Don’t open Syslog APP module;